Android:来电自动应答,播放音频文件

Question

在Android中,在来电时,我想收到它.然后,从我的应用程序,在通话过程中自动播放音频文件,另一方应听到它.这可能吗？

Answer 1

您正在谈论的内容与android完全无法实现.Android无法访问通话中的音频流.

虽然我可以给你一些关于如何做到这一点的想法.

首先拦截来电,你需要注册广播接收器,无论何时收到呼叫都会调用

public void onReceive(final Context context, Intent intent) 
{
    TelephonyManager telephonyManager = null;
    PhoneStateListener listener = new PhoneStateListener() 
    {
        public void onCallStateChanged(int state, String incomingNumber) 
        {
            switch (state) 
            {
            case TelephonyManager.CALL_STATE_IDLE:
                Toast.makeText(context, "Call Ended..", Toast.LENGTH_LONG).show();
                Log.i("stop", "Call Ended....");
                break;
            case TelephonyManager.CALL_STATE_OFFHOOK:
                Toast.makeText(context, "Call Picked..", Toast.LENGTH_LONG) .show();
                Log.i("received", "Call Picked....");
                break;
            case TelephonyManager.CALL_STATE_RINGING:
                Toast.makeText(context, "Call Ringing.." + incomingNumber,5000).show();
                break;
            }
        }
    };
    // Register the listener with the telephony manager
    telephonyManager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);

也改变你的清单,

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <receiver android:name="MyReceiver">

            <intent-filter>

                <action android:name="android.intent.action.NEW_OUTGOING_CALL" />



            </intent-filter>
        </receiver>
    </application>

有了这个,你可以拦截来电并接听电话,现在你可以尝试播放一些mp3文件了

case TelephonyManager.CALL_STATE_OFFHOOK:
                // Play mp3 file here
                break;

希望能帮助到你.必须尝试这个并告诉我经验.